Dial



J. MACE'.

DIAL.

APPLxcATloN FILED sEPT.9,1919.` 1,337,243. Patented Apr. 20, 1920.

3 SHEETS-SHEET l.

ATTORNEYS I. MACE.

DIAL.

APPLICATION FILED SEPT. 9. 1919.

Patented Apr. '20, 1920.

3 SHE INVENTOR Jdeqyfce JULES MACE, 0F GRASSE, FRANCE.

DIAL.

Specification of Letters Patent.

Patented Api'. 20, 1920.

Original'application-filedNovember 29, 1918, Serial No. 264,666. Divided and this application filed Septemi ber 9, 1919. Serial No. 322,693.

To all Iwhom t may concern:

Be it known that I, J ULiis MAC, a citizen of France, residing at Grasse, Alpes Maritimes, France, have invented a new and Improved Dial, of which the following is a specification.

'in my present application, l have shown and shall describe so much of the keylesslock mechanism disclosed in my other application stated as is necessary to illustrate an operative showing vof the dial devices, whicli,- ver se, constitute the subject matter of my present invention and which will be hereinafter fully explained, speciiically'set out in the appended claims and illustrated in the accompanying drawings, in which:

Figure l is a plan vier7 of my keyless lock, parts being in horizontal section on the line l-l on Fig.' 2 with my improved dial devices included.

Vlfig. 2'is a sectional elevation of the lock, taken substantially on the line 2 2 on Fig. l., looking in the direction of the arrow.

Fw. 3 is a similar view taken substan- -1- tiall i on the line 3-5 oii hiv. 4;. m i im- 5 e l proved dial devices and the transmission,

gear connections that join the said devices with the tumbler disks shaft being indicated in dotted lines.

' Fig. 4- is a vertical cross sectional view taken substantially on the line 4 4: on Fig. 3.

Figs. 5 to 16, inclusive, are diagrams that show the relation of my. improved dial device to the tumbler disks of the lock and the manner -of adjusting the said disks, as will hereinafter be specifically set-forth.

Briefly stated, the locking mechanism, which constitutes the subject matter of my copending application referred to, and so far as illustrated in the present application, includes a plurality of tumbler disks; and they are controlled, in their several adjustments, by the dial plate located on the front face of the lock casing, combined with an operating knob correctly operable only by those familiar with the combination or combinations on which the disks may be set.

Latch devices are also provided that cooperate with the tumbler disks and which constitute a part of the lock mechanism and the said latch devices embody a member that extends through the face plate of the casing for shifting the latches for interlockably engaging and holding the several disks, when set, by the dial knob, to the required combined positions for permitting the shifting of the lock bolt to the locking and unlocking adjustments.

Means are also included in the complete construction of the lock mechanism, that embrace an operating knob located on the outside of the back or front face of the lock casing for shifting the lock bolt to the locking and unlocking position.

While I have shown a combination of but four tumbler disks, the indicia on the dial devices including in the examplethe actuating knob, are especially designed for adapting the use of such devices with as many tumblers or combination disks as required.

The construction of the tumbler disks will be best understood by reference to Figs. l, 2 and e of the drawing in which 5, 6, Z and 8 designate the several tumbler disks and they are of like construction and each includes an annular rim flange 9.

Each of the rim flanges 9 has a slot or recess respectively designated by 50, GO, TO and 80. The recesses of the several rim flanges are arbitrarily disposed relatively to each other and theyv constitute the registering elements that must, 'under a proper manipulation of the several disks and controlled by the proper manipulation of the dial devices, as hereinafter fully explained, be brought into alinement to permit the desired interlocking shift or movement of the bolt frame or casing presently again referred to.

Each of the aforesaid disks has an alinement or stop pin l() and the said pins may be adjustably mounted on the disks and all of the several tumbler disks are held in light frictional. contact with the disks turning shaft 17 that is mounted in the lock casing, as clearly shown and described in my copending application referred to.

21 and 22 designate, what I term the transmission gears since it is through these gears that the rotative movements of the dial shaft 23 aretransmitted to the disks carrying and setting shaft 17. Gears 21 and 22 are of like diameter and have corresponding number of teeth. Cog gear 22 is ixedly mounted on the inner end of the dial or knob shaft 23 and the latter passes through an opening 24 (see IFig. 1) in the casing front and is f disposed laterally of the toothed gear 21.

26 designatesa latch plat-e that has vertical adjustment in a recess 27 on the inside of the front lock casing plate 1. At its upper end, thehplate 26 has an inwardly eX- tended arm 28 provided with latch teeth 30 and at the lower end it has a like inwardly extended arm 29, the latter having three upwardly extended latch teeth 31, while the upper arm 28 has two latch teeth that eX- tend over the first two disks 5 and 6.

The latch teeth 30 are adapted for engagement with the toothed rims 51 and 61 of the aforesaid disks 5 and 6. The three latch teeth 31, on the lower arm 29, are adapted for being moved upwardly to engage the toothed rims 51, 61 and 71 of the three disks 5, 6 and 7.

It should be here stated that the latch devices are provided for holding the disk 5 at its set position, when adjusting` the parts to the unlocking position as presently more fully explained, and while the disk 6 is being shifted and for holding the disks 5 and 6 to their shifted position, as the disk 7 is being manipulated to the proper position4 and finally for holding the three disks 5, 6 and 7, as the last disk 8 is brought into proper` alinement with the remaining disks 5, 6 and 7.v

32 designates a stop that is secured to the bottom of the lock casing and it carriestwo upright staffs 4 which extend between each of the pairs of disks 5, 6 and7, 8 and constitute stopsagainstwhich the vstarting pins, that project from the adjustable disks 5, 6 and 7, 8 abut, when the several disks 5, 6 and 7, 8 are turned back to the starting point duringthe manipulation of the locking e'lements, when shifting them to the unlocking adjustments in the manner to be presently explained.

33 designates what I term the combined l bolt frame and disk cage, since the said disks 5, 6 and 7, 8 are located within the opposite side andend bars or members 34, 34 and 35 35.

it one end, the frame 33 has a locking bolt 36which normally extends' through a bolt'passage37 in one end of the lock cas- 111g;

A pair of rack bars 38, 38 are attached, by screws to the cage frame 33 and the ends of said bars are held to slide in passages in that'end of the lock casing opposite the bolt receiving end, as clearly shown in Fig. 2.

The 'opposite side members of the bolt frame or cage each have a rectangular opening 40 to permit of shifting the said frame 30 over the shaft 17, the reason for which will presently appear.

The bolt frame 33 includes a number of bits designated 41, 42 and 43, the middle one 42 of which is wider than the outer ones 41, 42 and coperates with the two'middle disks 6 and 7, while the other bits 41, 43

are adapted for coperating with their adjacent disks 5 and 8.

A cross shaft 16 journaled in the front and back casing membersprojects through the casing frontl and carries'a milled knob 44 and on the said shaft 16is fixed a pairV of gears 45, 45 that mesh with the toothed edges of the rack bars 38, 38, it being understood that the bolt frame or cage is free to move endwise, when the disks have been adjusted to permit of such movement by turning the knob 44, when it is desired to withdraw or proj ect the locking bolt 36.

At the inner end, the bolt frame has a single latch tooth 46 which engages with the annularly toothed rim 51 of the first or front disk 5, and which, when the lock bolt is shifted to the outermost locking position holds the said disk stationary, while the neXt disk 6 is brought into position to be then held with the disk 5 by the latch teeth 30.

Two screws 49, 49, with countersunk heads, pass through upper and lower apertures in the back plate 3 and the inner ends of the said screws, when they are applied for securing the plate 3 onto the casing, engage threaded sockets 60, 60 in the front wall of the casing, as is shown in Fig. 1.

Each screw 49, 49 has a latch tooth 52 and the teeth 52, when the partsare secured to complete the lock casing, are radially projected with respect to their respective screws 49 so that any attempt to withdraw the said screws 49 causes the latch teeth to engage upper and lower locking hooks 53, 53, on what I term the screw lock plate 54, which plate is normally projected for holding the hooks 53, 53 in position for being engaged by the latch teeth 52, 52 on the screws.

Leaf springs 55 interposed between and engagingk the plate 54 and the adjacent end of the casing, serve to hold the plate 54 to its normal or screw locking position.

The screws lock plate 54 can be shifted so its hooks 53, 53 are moved out of connection with the latches 52 on the screws, when thelock rbolt is free for beingmoved back to its unlocked position within the casing.y and when thus freely movable, by continuing the inward thrust of the bolt frame, the back or end member 35 of said frame engages and pushes the screws lock plate back against the tension of the springs 35, the rack and gear connection serving to hold the said plate toits pushed back position, while removing the screws 49, 49, it being clear from Figs. 2 and 5, that, when the said two screws 49, are withdrawn, the back plate 3 can be readily removed to give access to theinterior parts of the lock.

As before stated, the latch plate 26 is slidably mounted in the inner face of the casing front l, and the movements of the said plate, up and down, provide for engaging the several upper and lower latch teeth El) and 3l with the toothed flanges of the several disks 5, 6, and 7, when the latter are set in position for bringing their notches 50, 60, into proper alinement with the several bits on the bolt frame hereinbefore nientioned.

ln order to keep the combination of movements of the four disks in mind, a dial plate 100 is mounted on the front of the lock easing which surrounds the operating knob ne and on this dial plate is scaled in regular order the letters of the alphabet.

l/Yhen four tumbler disks constitute the permutation elements, as shown and before described, four angles in a certain order of succession must be remembered.

To that end, the knob has four imaginary angle lines 5, 6a, 7a and Sa that constitute a part ofthe means for delivering the set of the tumbler disks 5, 6, 7 and 8, respectively.

The face of the knob also has an line B that constitutes the means for determining the last or final movement of the knob, when setting the several stated tumbler disks, a stop line A. on the dial being also provided with which the angle line B alines at each final adjustment of the knob.

,"rssuming the word lKeyless lock as the secret word for the combination on which the locking mechanism is to be adjusted, to provide for freeing the bolt frame so that it may be quickly lshifted to move the bolt to the unlocked position shown in Fig. 3, it being also understood that the four tumbler disks 5, 6, 7 and 8 are held in such frictional contact with the bosses 15, 15 a tached to the shaft 17 that when free of resistance,the said disks turn with the said shaft.

ln order to make it easy for one knowing the secret of the lock to remember the same and the means for effecting the unlocking thereof, I have devised the following: The knob has engraved thereon the letters of the alphabet arranged in four columns of each, (there being sin spaces between each letter on the dial) and the numerals l to 6 opposite the corresponding letter of each column, the letters 2/ and e thus left over are placed beneath the columns with their corresponding numerals l and 2. The word Keyless lock being used as the secret word, I elect to use the odd letters K-Y-E-S as the master letters and they serve to denote the four angles of movement tl e knob goes through in effecting the setting of the four tumbler disks. rFliese inaster letters are modified by the go between letters l-L-S-L. Thus it will be seen that a person knowing the secret word and seeking to properly set the first of the tumbler disks whose angle is designated by the master letter K, looks for the number opposite the modifying letter E and finding it to be 5, knows that the angle for the said disk is accurately 5 spaces past the letter K. To find the other angles, the same action is followed for the remaining master letters Y-E-S and their modifying letters L- .S-L. lt will be readily seen that the letters engraved on the :nob reveal nothing to any one ignorant of the secret word.

In starting the unlocking operation, the knob x is turned to the right (see arrow o on diagram Fig. 5) at least 360 degrees. The rotation of the knob shaft, 'through the gears 22, 2l, turns the said shaft 17 to the left and the tumbler disks 5 to 8 in like direction, see the arrow Z on diagram 6, until the starting pins 10 of all of the disks are brought into engagement with the stops 4, which latter arrest further movement of the disks in the direction stated, thereby bring ing the starting pins 10 of all of the disks in proper alinement or starting position.

The knob ai is now continued in the forward direction indicated by the arrow c until the angle line B on the knob comes opposite the fifth space after the letter K on the dial, it being understood that during such continued forward rotation of the knob, the disks remain at their starting point.

The knob is then turned counterclockwise or backward until the angle line B registers with the stop line A. During this last or counterclockwise movement of the knob, the disks, by reason of their frictional contact with the bosses l5 turn in like direction and such movement brings the bit notch 50 in the disk 5 in alinement with its eooperating bit 41 on the lock bar, see Fig. 1.

After the disk 5 has been set as stated, by then giving the bolt plate a slight movement in the locking direction (see the arrow 1,2/ on Fig. l), which is done by slightly turning the bolt shifting knob, the single latch tooth 46 on the bolt frame will interlock with the toothed rim on the disk 5 and thereby hold the said disk 5 to its set position and from further turning in either direction during further manipulation of the knob.

The knob m is then again turned to the right at least 360 degrees and continued in the said direction until the angle line B registers at the sixth space after Y (see diagram Fig. 8), after which the said knob is again turned backward to the stop line A carrying with it the disks 6, 7 and 8 and at which time the bit notch in the disk 6 (see dotted lines on Fig. l0) will be in alinement with its respective bit 42.

After the adjustment of the second disk 6, as stated, the latch bar 26 is lowered through the medium of' a finger lever 65 on the outside of' the lock casing and which is attached to a shaft 66 that carries a finger 67 that engages with the Lipper end of the latch bar 26, as is best shown in Figs. l, 3 and 4.

The lowering of the bar 26 causes the two upper latch teeth 30 to move into engagement with the toothed rims on the disks 5 and 6 and thereby locks the said two disks 5 and 6 to their said positions.

Knob is now again turned to the right 360 degrees or more until the line B registers at' the first space after E on the dial plate (see diagram Fig. 1l), and then moved farther back until it registers with the stop line A, which operation brings the disk 7 with its bit notch 70 in line with the central lock bit that coperates with the two disks 6 and 7.

The latch bar is now raised to thereby elevate the three bottom latch teeth 3l (sce Fig. 4) into engagement with the toothed rim on the three disks 5, 6 and 7.

The knob is now finally turned to the right at least 360 degrees and` continued until the line B on the dial registers at the neXt space after S (see the diagram Fig. 14), after which the knob is turned back to the stop line A, carrying with it the now only movable disk 8 which brings its bit notch 8O in alinement with its respective bolt bit, it being understood that the bolt notches 50, 60, 70, of the respective disks 5, 6, 7 and 8 are now in alining positions, as indicated by the dotted lines on the diagrams 7, 10, 1s and 16.

After the disks 5, 6, 7 and 8 have been set, as stated, by turning the bolt knob 44 tothe right, the bolt-frame is moved in the direction of the arrow e, see Fig. 3, and as the bolt bits can now pass through the several notches 50, 60, 70, 80 in the tumbler disks 5, 6, 7 and 8, the bolt is readily retracted and the lock opened;

From the foregoing description taken in connection with 4the drawings, the complete construction, the manner of operation and the advantages of my present invention will be readily apparent to those skilled in the art to which my invention relates.

What l claim is:

l. ln a lock of the character described, a fixed dial plate sub-divided into main divisions, each having a special indicia, each main division being divided into a predetermined number of sub-divisions, and a rotatable knob which controls the set of the combinations of the lock mechanism, the said knob having a set of indicia corresponding to the indicia on the main divisions of the stationary dial and arranged sequentially in groups corresponding with the subdivisions of the main graduations on the fixed dial and numbered in sequence substantially as shown and for the purposes described.

2. In a keyless lock, the combination with the fixed dial having a series of main divisions alphabetically arranged with an equal number of sub-divisions between each pair of main divisions, a movable knob adapted to operate the tumblers of a lock, said movable knob having the letters of the alphabet indicated thereon in columns of units corresponding to the number of subdivisions between the fixed dial substantially as shown and for the purposes described.

3. In a lock of the character described, the combination with the fixed dial plate sub-divided into alphabetical main divisions, each main division being sub-divided into a predetermined number of sub-divisions and a rotatable member which operates the combination mechanism of the lock; of a set of letters arranged on the member corresponding to the letters of the main divisions of the stationary dial and arranged sequentially in groups corresponding with the subdivisions of the main graduations on the fixed dial and numbers in sequence, substantially as and for the purposes described.

4. In a lock of the character described, the combination with the fixed dial subdivided into main divisions, each division having a special indicia, each main division being divided into a predetermined number of sub-divisions, a rotatable member that operates the lock mechanism, indicia on said rotatable member and corresponding to the indicia on the main divisions of the fixed dial and arranged sequentially in groups correspondingwith the sub-divisions of the main graduations on the fixed dial and numbered in sequence.

JULES MACE. 

